Doesn't work if the parents don't care... and in reality they don't (at least here in the more metro areas). This does in fact include schools... at least the schools that I sometimes work with, which are all high income areas and what many consider very safe towns. If anything you're setting yourself up for complaints if its a private event. The birthday girl will go complain to the mom and the mom will tell you its fine and just play whatever. In my office, I always get these song requests, and I often say to the parents don't worry, I have the clean versions of pretty much all these songs. Sometimes, and almost instantaneously, the bday girl will jump in and say can you not play the clean verses. The parents noticing the daughters distaste for clean versions will sometimes reply with "oh its ok you don't have to play the clean versions, its not like they haven't heard these words before". I still reply, that I pretty much only get clean versions because of schools and stuff that I dj, but that if I have a dirty version only, I won't refrain from playing it (I still don't play it though). Yes I still get parents that say no cursing, minimal rap, etc... but the majority is changing. Even weddings are saying they don't care either though. They just want to replicate their favorite club or bar when they go out, and they don't care for the clean versions. As far as weddings go... its definitely the minority, but I've seen those conversations happening a little more frequently than normal.